How to handle master page postback using javascript or jquery

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In my web application i have integrated a Chat Application developed in asp.net, Jquery and web services using sql server 2008. and i create a user control for it. i use this user control at master page.

my problem is-- i m in a chatting if there is any postback than chatbox is closed for every postback how to handle this problem please help me....

thanks in advance...

Posted 12-Jun-14 21:00pm

Kriti Sharma 10400841

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3 solutions

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Debabrata_Das · Answer 1 · 2014-06-13T04:57:00

Solution 2

Hi Kirti,

As per my understanding of the problem is when you postback your page, everything is lost from the page.

I think you have to restrict postback. If that's not feasible solution as per the requirement, then you may think of implementing partial postback so that controls created using JavaScript are not sent back to server hence the controls will not get lost over the postback.

Please let me know if there are any further queries.

-DD

Posted 13-Jun-14 4:57am

Debabrata_Das

Comments

Kriti Sharma 10400841 16-Jun-14 0:23am

how can i implement partial postback in master page if i use a user control or jquery to implement chat on application... please guide me

[no name] 19-Jun-14 7:54am

Dear Kirti,

You can send request to server using jQuery with the help of AJAX.

NitinDhapte · Answer 2 · 2014-06-13T00:54:00

Solution 1

Try this :

Add below condition in "Page_Load" event of master page

C#

if (!Page.IsPostBack)
{
    //Your Code
}

Posted 13-Jun-14 0:54am

NitinDhapte

Comments

Kriti Sharma 10400841 13-Jun-14 7:02am

my problem is that chatbox is closing after postback how to prevent to closing it...
my chatbox is created using javascript with user id..
i am able to create many chat boxes for every user at the same time how to prevent to close all the chatboxes at page post back as they are created using jquery or javascript..

[no name] 17-Jun-14 6:31am

Dear Kriti,

Please share your code. So I can give you a proper solution.

[no name] 20-Jun-14 11:57am

I think solution 3 is the right answer for you

NitinDhapte · Answer 3 · 2014-06-20T01:35:00

Add below code in Code Behind Page:

C#

if (IsPostBack)
{
    //Registering HiddenField for PostBack
    ClientScript.RegisterHiddenField("IsPostBack", "1");
}

JQuery Code:

JavaScript

if ($("#IsPostBack").val() != "")
{
    //This will execute when PostBack is false
    //Write your code here
}

Javascript Code:

JavaScript

var IsPostBack = document.getElementById("IsPostBack").value;
if (IsPostBack = "1") {
    //This will execute when PostBack is true
    //Write your code here
}